CVE-2026-23859 identifies a security vulnerability in Dell Wyse Management Suite, a product used for managing thin clients and endpoint devices. The issue arises from improper enforcement of security controls on the client side rather than the server side, classified under CWE-602 (Client-Side Enforcement of Server-Side Security). This design flaw allows a high-privileged attacker who already has remote access to the management suite to bypass protection mechanisms that should be enforced by the server. Since the security enforcement is improperly delegated to the client, an attacker can manipulate client-side controls to circumvent restrictions or protections, potentially leading to unauthorized changes or actions that compromise the integrity of the management environment. The vulnerability does not affect confidentiality or availability directly but can lead to integrity violations. The CVSS 3.1 base score is 2.7, reflecting low severity due to the requirement for high privileges and the absence of user interaction or confidentiality impact. No exploits have been reported in the wild, and no patches are currently linked, indicating that remediation may be pending or in development. The vulnerability affects versions prior to WMS 5.5, so upgrading to this or later versions is expected to resolve the issue.

The primary impact of this vulnerability is on the integrity of the Dell Wyse Management Suite environment. An attacker with high privileges and remote access could bypass client-side enforced security controls, potentially making unauthorized changes to device configurations or management policies. While confidentiality and availability are not directly impacted, the integrity compromise could lead to misconfigurations, unauthorized device behavior, or weakened security postures across managed endpoints. Organizations relying on Dell Wyse Management Suite for centralized endpoint management, especially in environments with thin clients or remote workforces, could face increased risk of unauthorized administrative actions. This may affect operational stability and trust in endpoint management processes. The low CVSS score indicates limited risk under normal conditions, but the requirement for high privileges means that the vulnerability could be leveraged as part of a broader attack chain where an attacker has already gained elevated access.

1. Upgrade Dell Wyse Management Suite to version 5.5 or later as soon as the patch becomes available to ensure server-side enforcement of security controls. 2. Restrict remote access to the management suite interfaces using network segmentation, VPNs, or firewall rules to limit exposure to high-privileged attackers. 3. Implement strong authentication and authorization controls to reduce the risk of privilege escalation leading to exploitation. 4. Conduct regular audits of management suite configurations and logs to detect unauthorized changes or suspicious activities. 5. Avoid relying solely on client-side validation for critical security controls; enforce all security policies on the server side. 6. Employ endpoint monitoring and anomaly detection to identify potential misuse of management functions. 7. Engage with Dell support or security advisories for updates and best practices specific to Wyse Management Suite security.